"My description of the roulette bracket is the best I can do under the allowed time and venue conditions; But it still has great defects. The purpose of this is only to prevent others from obtaining similar patents. "
Some people think that Watt did not let his employee William Murdoch participate in the development of its high-pressure steam engine, thus delaying the invention. Watt also worked with Bolton to suppress the work of other engineers. For example, Jonathan hornblower invented another steam engine in 178 1 year, but was sued for infringing Watt's patent and failed.
Watt's patents on "Sun and Planet" crank-gear linkage mechanism in 178 1 and steam engine in 1784 have strong evidence to prove that it was invented by his engineer William Murdoch. Watt mentioned this invention in a letter to Bolton on1782+10.3, saying:
"I experimented with a circular engine model, which was re-proposed and realized by William Murdoch according to my original plan. . . "
However, William Murdoch himself has never raised any objection to the ownership of this patent. He worked in Burton and Watt's company all his life and was accepted as one of the partners after Watt retired. Even after the original patent for the crank that prevented Watt from inventing expired in 1974, Watt's steam engine continued to adopt this "sun and planet" transmission technology.
It is said that Watt also blocked the invention and popularization of other non-patented steam engines, believing that it is impossible to propel vehicles with steam engines.